SHIMANO Single-Speed Freewheels Review Posted by Pelicandy August 24, 2018 in Drivetrain Components Works with 3/32″ or 1/8″ chains BMX or single-speed, the Shimano Single-Speed bicycle freewheel is the industry standard. Random Products Shimano XT SL-M780-B-I and SLX SL-M670-B-I Bolt an... Chain Guard 20″ W/Line Adjustable Chrome. bi... Promax PX-BB13ST113-BK Promax ST-1 Square Taper St... RaceFace Narrow Wide 104mm BCD Chainring, 9-12sp R... Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors